Control of THz field waveform emitted from air plasma by chirping two-color laser pulses

Flender, Roland; Sárosi, Krisztina; Petrács, Ervin; Börzsönyi, Ádám; Chikán, Viktor

doi:10.1016/j.optcom.2018.12.020

Cited by 13 publications

(5 citation statements)

References 16 publications

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“…It adopts the zincblende crystal structure, with interpenetrating FCC lattices of anions and cations. On its own, it is typically used in opto-electronics and nonlinear optics, and recently, it has been proposed as a cryogenic scintillator for radiation detector applications. − It is also one of the endmembers of and precursor compounds used in the production of CdZnTe and CdZnTeSe radiation detectors, which are able to operate at room temperature. , CdZnTe has long been known as the most promising commercial material for room-temperature radiation detector applications. However, the material contains severe performance limiting defects that hinder the realization of large volume detectors at reasonable cost.…”

Section: Introductionmentioning

confidence: 99%

Effects of Selenium Doping in Zinc Telluride from First Principles

Baker

Roy

2022

J. Phys. Chem. C

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Point defects and compensation in zinc telluride have been subjects of study for several decades due to the compound's scientific/technological applications. Despite this, there remains some disagreement in the literature as to the fine details of its defect chemistry. Recently, it has also come under renewed interest due to the emerging Cd (1−x) Zn x Te (1−y) Se y material family, used in nuclear radiation detector applications. In this article, we use state-of-the-art computational tools to re-examine the native defect chemistry of ZnTe and explore how it changes upon addition of selenium using density functional theory with screened hybrid exchange−correlation functionals, thermochemical models of the equilibration environment, and statistical mechanics models of the point defect ensemble.

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Section: Introductionmentioning

confidence: 99%

Effects of Selenium Doping in Zinc Telluride from First Principles

Baker

Roy

2022

J. Phys. Chem. C

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“…At sufficiently high laser intensities even so-called non-ionizing (VIS-IR) EM radiation can ionize gases through multiphoton processes. By using SH and fundamental driving sources simultaneously, and by changing the relative phase between them, the behavior of the ionized electron can be modified [126]. This phenomenon is beneficial for many applications such as two-color terahertz generation [126,127] and two-color HHG [128,129].…”

Section: Iii2 Spectral Phase Shift Measurement With Dual-band Srimentioning

confidence: 99%

“…By using SH and fundamental driving sources simultaneously, and by changing the relative phase between them, the behavior of the ionized electron can be modified [126]. This phenomenon is beneficial for many applications such as two-color terahertz generation [126,127] and two-color HHG [128,129]. These applications require spectrally broadband optical elements, where the induced spectral phase shift is characterized at both the fundamental and SH frequency bands.…”

Section: Iii2 Spectral Phase Shift Measurement With Dual-band Srimentioning

confidence: 99%

Advanced metrology for few-cycle mid-IR pulses

Kurucz

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AGS silver thiogallate AGSe silver selenogallate AOPDF acousto-optical programmable dispersive filters AR anti-reflection ARR-PCF antiresonant-guiding photonic crystal fiber BBO beta barium borate CPA chirped pulse amplification CW continuous wave CEO carrier-envelope offset CEP carrier-envelope phase DFG difference frequency generation DFT dispersive Fourier transform EM electromagnetic FPGA field-programmable gate array FROG frequency-resolved optical gating FT Fourier transform FTIR Fourier transform infrared spectroscopy FTL Fourier transform limit FFT fast Fourier transform FWHM full width at half maximum GDD group delay dispersion GV group velocity GVD group velocity dispersion HHG high harmonic generation IFFT inverse fast Fourier transform IR infrared IPN integrated phase noise KTP potassium titanyl phosphate LN lithium niobate LWIR long-wavelength infrared mid-IR mid-infrared near-IR near infrared NOPA noncollinear optical parametric amplification OP orientation-patterned OPA optical parametric amplifier OPCPA optical parametric chirped pulse amplification OPO optical parametric oscillator OR optical rectification OSA optical spectrum analyzer PPLN periodically-poled lithium niobate PSD power spectral density PP periodically poled QPM quasi-phase-matching RMS root mean square SCG supercontinuum generation SFG sum frequency generation SH second harmonic SHG second harmonic generation SH-SRI second harmonic assisted spectrally resolved interferometry SPM self-phase modulation SRI spectrally resolved interferometry STOD specific third order dispersion SWIR short-wavelength infrared TOD third order dispersion TOUCAN temporal dispersion based oneshot ultrafast carrier envelope phase analysis UV ultraviolet VIS visible WLC white-light continuum YAG yttrium aluminum garnet ZDWL zero-dispersion wavelength ZGP zinc germanium phosphide

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“…A nonlinear crystal is placed before the focus to generate the SH pulses; the type of the nonlinear crystal is chosen based on the carrier wavelength of the pulses. In the case of NIR and MIR driving pulses, the typical choices are beta barium borate (BBO) [23,45,[70][71][72][73][74][75][76][77][78] and GaSe [30,69,79], respectively. Both nonlinear crystals are used in Type-I phase matching (ooe) for SHG, which means that the fundamental pulses and their SH pulses are o and eo polarized, respectively.…”

Section: : the Different Scaling Laws Of The Efficiency Of Thz Pulse ...mentioning

confidence: 99%

“…My results are in the range of previous works as these data show. Next, I compared the efficiency of THz pulse generation from MIR and LWIR OPCPA sources and Ti:Sapphire lasers, which are still the most common sources for this type of THz pulse generation [45,[70][71][72][73][74][76][77][78]. The central wavelength of Ti:Sapphire lasers is around 0.8 µm, which means the GaSe nonlinear crystals cannot be used for SHG.…”

Section: The Effect Of the Central Wavelength On Thz Pulse Generationmentioning

confidence: 99%

Few-cycle pulse generation in the mid-infrared and THz spectral domains

Flender

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Control of THz field waveform emitted from air plasma by chirping two-color laser pulses

Cited by 13 publications

References 16 publications

Effects of Selenium Doping in Zinc Telluride from First Principles

Effects of Selenium Doping in Zinc Telluride from First Principles

Advanced metrology for few-cycle mid-IR pulses

Few-cycle pulse generation in the mid-infrared and THz spectral domains

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